Margin-roller for rotary printing-machines.



No. 650,579. Patented ma -29, I900.

A. COLE. I

MARGIN ROLLER FOR ROTARY PRINTING MACHINES. (Application filed Mai 11,1899.) (No Model.) 3 SheeIsv-Sheet I.

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No. 650,579. Patented May 29, I900.

' A. COLE.

MARGI N ROLLER FUR ROTARY PRINTING MACHINES.

' (Application filed May 11, 1599. (No Model.) 3 Sheets8hee 2.

@12 7: eweqn 172061222 WQ W 60% No. 650,579. Patented May 29, I900.

A. COLE. I v

MARGIN ROLLER FOR ROTARY PRINTING MACHINES.

(Application filed. May 11., 1899.) (No Model.) 3 Sheets$heet 3.

%Znessea fizz/6212221 UNITED STATES PATENT Orrin.

AROHIBALDCOLE, OF PLAINFIELD,'NE\V JERSEY, ASSIGNOR TO THE ALUMINUMPLATE AND PRESS COMPANY, OF SAME PLACE'AND NEW YORK, N. Y.

MARGlN-ROLLER FOR ROTARY PRINTING-MACHINES.

SHECIIEICATION forming part of, Letters Patent No. 650,579, dated May29, 1900.

Application filed May 11, 1899. Serial No. 716,430. (No model.)

To all whom it may concern:

Be it known that I, ARCHIBALD COLE, a citizen of the UnitedStates,residin g at Plainfield, in the county of Union and State of NewJer- 5 sey, have invented certain new and useful Improvements inMargin-Rollers for Rotary Printing-Machines, of which the following is aspecification.

This invention relates to the mounting of t the small pressure rollersor pulleys which are employed to grip the margins of sheets by pressureon the cylinder by which they are carried, so as to compel the propermovement of the sheet with the cylinder on which it is' r carried afterthe spring-grippers let go their hold of the forward edge of the sheetto permit its delivery from the delivery-cylinderto the flies or fromone cylinder to another. The improvement consists in mounting suchmargin-rollers on yielding arms to enable them to rise sufficiently topermit the passage beneath them of the grippers or other projections onthe cylinder. This is especially adapted to delivery-cylinders withgrippers 2 5 closing on pads or any raised surface on the cylinder whenthe margin of the sheet comes directly over the deliverygripper. Themargin-rollers after yielding to permit the passage of the grippersengage automatically and eifectively with the margins of the sheet.

The invention is primarily designed for use in connection with thedelivery-cylinder of a rotary printing-press, and in order that it maybe clearly understood it will suffice to show and describe it in thisconnection, though it may be applied to other cylinders.

In the accompanying drawings, Figure 1 is a plan view of a portion ofthe delivery-cylinder of a printing-press with my invention applied.Fig. 2 is an end view thereof,partly in section, showing the normalposition of the parts, with the margin-roller in contact with thesurface of the cylinder. Fig. 3 is a similar View showing themargin-roller lifted by the passage of the gripper beneath it.

1 represents a part of the delivery-cylinder of a rotary cylinder-press,and 2 2 grippers carried thereby mounted on an oscillating shaft 3 incustomary manner by which the grippers are released at the proper time,caused to engage the edge of the sheet, and are lifted at the propertime to discharge it.

4 4 represent pads on which the points of the grippers rest in holdingthe edge of the sheet. The pads 4 4 are for the purpose of providingsurfaces coincident with the surface of the impression-cylinder at thepoint of transfer of the sheet to the delivery-cylinder, said padsspanning the space between the impression and delivery cylinders, whichis provided to allow the impression-cylinder to be moved away from theplate-cylinder toward the delivery-cylinder.

6 represents one of the margin-gripping rollers, having a rim 7, ofsuitable yielding material and mounted in hearings in a frame 8,oscillating on a fulcrum-pin 9 in an adjustable bracket 10. The bracket17, in which the bracket 10 has longitudinal adjustment, is capable ofangular adjustment on a'fixed 7o supporting-rod 18 and is held in therequired position by a set-screw 19. 20 is a set-screw by which thebracket 10 is fixed in any posi tion in which it is set. By these twoadj ustments I am enabled to set the pressure-rolls in position to suitany desired change in point of delivery. A spring 11, mounted on thebracket 10 and bearing at its free end on a nut 12, by which thefulcrum-pin 9 is secured, or on any other suitable attachment to theframe 8, enables the margin-roller to rise to permit the gripper to passbeneath it and at other times presses it down into effective contactwith the surface of the cylinder 1.

A set-screw 13, working in the projecting heel 14 of the oscillatingframe 8 and provided with a jam-nut 15, serves to limit the movement ofthe oscillating frame by contact with a shoulder 16 on the bracket 10.

- When a fixed margin-roller arm is used, 0 the grippers and pads haveto be removed, thus causing inconvenience and loss of time and theprobability that the grippers and pads may not be replaced in properposition. With the automatically yielding margin- 5 roller arms thegrippers and pads do not have to be disturbed.

Having thus described my invention, the

following is What I claim as new therein and desire to secure by LettersPatent:

1. The combination of the cylinder 1, projecting gripper, margin-roller,oscillating arm or frame 8 and spring-pressing the marginroller down onthe cylinder, as explained.

2. The combination of thecylinder 1, grip-- 11, and set-screw 13,substantially as and for the purposes set forth.

4. In combination with the cylinder 1 the margin pressure-roller 6,oscillating springpressed frame or arm 8 in which said roller has itsbearings, adjustable bracket 10 in Which the oscillating frame or arm 8is fulcru med and the an gularly-adj-ustable bracket 17 in which thebracket 10 is adjustably mounted, substantially as and for the purposesset forth.

AROHIBALD COLE. Witnesses:

WM. E. KNIGHT, M. V. BIDGOOD.

